[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Johnson Controls International jobs](https://jobs.opennash.com/companies/johnson-controls-international/) · [Search jobs](/search/) Johnson Controls International · Singapore-Singapore-Singapore # HVAC Design Manager Singapore-Singapore-Singapore Full-time Manager or lead Design Listed on Johnson Controls International’s official careers site. Posted October 20, 2026. Check that it is still open and apply there. [Apply on Johnson Controls International’s careers site →](https://jci.wd5.myworkdayjobs.com/JCI/job/Singapore-Singapore-Singapore/HVAC-Design-Manager_WD30282802-2) [OpenNash Jobs](https://jobs.opennash.com/) / [Johnson Controls International](https://jobs.opennash.com/companies/johnson-controls-international/) / HVAC Design Manager ## Job description Who we are Build your best future with the Johnson Controls team. As a global leader in smart, healthy and sustainable buildings, our mission is to reimagine the performance of buildings to serve people, places and the planet. Join a winning team that enables you to build your best future! Our teams are uniquely positioned to support a multitude of industries across the globe. You will have the opportunity to develop yourself through meaningful work projects and learning opportunities. We strive to provide our employees with an experience, focused on supporting their physical, financial, and emotional wellbeing. Become a member of the Johnson Controls family and thrive in an empowering company culture where your voice and ideas will be heard – your next great opportunity is just a few clicks away! ### What you will do Manage assigned project(s) within HVAC portfolio. Serve as project manager who plan, execute and complete the medium complexity of project. Coordinate communication with sales, customer and contractors. Ensuring profitable execution, project integrity and customer satisfactions. ### How you will do it Develop and review detailed engineering drawings, schematics, and equipment specifications. Perform HVAC load calculations, hydraulic calculations, pump head calculations, pipe sizing, and chilled water/condensate water system design. Prepare technical proposals, bill of materials (BOM), equipment selections, and tender documentation. Ensure all HVAC designs comply with ASHRAE standards, local building codes, and corporate engineering guidelines. Coordinate with internal teams (sales, project management, solutions engineering) to support pre‑sales and project execution. Review and validate engineering designs from consultants, contractors, and partners. Provide technical mentorship and guidance to junior engineers. Conduct site assessments, attend technical meetings, and support design reviews. Support troubleshooting and commissioning activities related to HVAC and hydronic systems. Meeting with clients and design teams to determine mechanical applications and requirements. Review and understand mechanical designs using CAD, CAM, and 3D CAD programs. What we look for: Bachelor’s degree in Mechanical Engineering or related field. Minimum 7 - 10 years experience in HVAC system design, including chilled water systems or condenser system design. Strong understanding of HVAC system fundamentals, equipment selection, and controls integration. Hands‑on proficiency in HVAC design software (Revit, AutoCAD). Familiarity with performing hydraulic calculations and using tools/spreadsheets for pump head computation. Knowledge of relevant standards (ASHRAE, ISO, local mechanical codes). Experience delivering medium to large‑scale commercial or industrial projects. Strong documentation, communication, and coordination skills. Professional certification (SCEM, LEED AP) is an advantage. ### What we offer Competitive salary Paid vacation/holidays/sick time Comprehensive benefits package On the job/cross training opportunities Encouraging and collaborative team environment Dedication to safety through our Zero Harm policy #LI-GO1 #LI-Onsite ## At a glance - Posted by the employer: Oct 20, 2026 - First seen by OpenNash: Oct 20, 2026 - Last checked: Oct 20, 2026 - Listed for: Under a day - Location: Singapore-Singapore-Singapore - Employment type: Full-time[Apply on Johnson Controls International’s careers site →](https://jci.wd5.myworkdayjobs.com/JCI/job/Singapore-Singapore-Singapore/HVAC-Design-Manager_WD30282802-2) ## More jobs at Johnson Controls International ### [Application Engineer (Entry level candidates are welcome to apply)](https://jobs.opennash.com/companies/johnson-controls-international/jobs/8807f6981f3fa2cfc6f9/) Singapore-Singapore-Singapore ### [Assistant Fire Project Manager](https://jobs.opennash.com/companies/johnson-controls-international/jobs/df8cbcfd2a8c5734e929/) Singapore-Singapore-Singapore ### [Assistant Project Manager (Physical Security)](https://jobs.opennash.com/companies/johnson-controls-international/jobs/cbb6a6bfe9ac5d887d93/) Singapore-Singapore-Singapore ### [Assistant Service Engineer](https://jobs.opennash.com/companies/johnson-controls-international/jobs/20c7a8f8d6dcb4c3b777/) Singapore-Singapore-Singapore ## Similar jobs at other companies ### [NUVIA UK - Principal Building Services Engineer (HVAC) Oxfordshire, England Oxfordshire, England ENGINEERING / DESIGN STUDIES / METHODS ENGINEERING / DESIGN STUDIES / METHODS Permanent](https://jobs.opennash.com/companies/vinci/jobs/e45bc00af4e37cb894f0/) VINCI · Oxfordshire, England ### [Union HVAC Service Journeyman: Chiller Mechanic or HVAC Journeyman Mechanic](https://jobs.opennash.com/companies/siemens/jobs/17059304823bded09a5e/) Siemens ### [NUVIA UK - Principal Building Services Engineer (HVAC) Warrington, Warrington, England Warrington, Warrington, England ENGINEERING / DESIGN STUDIES / METHODS ENGINEERING / DESIGN STUDIES / METHODS Permanent](https://jobs.opennash.com/companies/vinci/jobs/e96e55b465d082f64f4d/) VINCI · Warrington, England ### [Mechanical HVAC Design](https://jobs.opennash.com/companies/aecom/jobs/cd539f30914a35ae7dd6/) AECOM · Mumbai, IND OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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